Has 'Lost' Jumped The Shark?

OK, so we only have a few episodes of Lost left to look forward to, before it goes on the insanely long 13-week break, but to be honest, it's not looking as if I'm going to be missing it much. You would think that as they only had 6 episodes with which to get us hooked before going away for so long, that they would make them GOOD episodes. But they have been awful! OK, I may exagerate slightly, but nothing has happened! After promises of 'not focusing as much on the old characters', and 'learning more about new ones', so far we have had 4 episodes about four of the original cast. And 4 of the most boring ones too. OK, so Sun's episode wasn't bad, and Locke's kinda added a layer to the character, but Jack and Sawyer's were just pointless! And as for the storyline's on the island itself, they have so taken a turn up the bizarre route! I mean sure 'Lost' wasn't exactly the most believable show in the world to begin with, but it was just plausible. Now, they've taken it into pure fantasy. Don't get me wrong, the season has had some good moments so far, such as the opening moments of the premiere which were just amazing, but I fear that to keep the balance, we are now being subjected to 6 episodes worth of pointless, going-nowhere storylines. I do still have faith that the writers can turn this around and that ultimately they have their masterplan, but I still can't help feeling that in certain aspects and directions that the show has taken recently, that it may have leaped over the big, toothy scarer of beach-goers.